CN103854926A - Electromagnetic contractor - Google Patents
Electromagnetic contractor Download PDFInfo
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- CN103854926A CN103854926A CN201310552808.6A CN201310552808A CN103854926A CN 103854926 A CN103854926 A CN 103854926A CN 201310552808 A CN201310552808 A CN 201310552808A CN 103854926 A CN103854926 A CN 103854926A
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- iron core
- fixed iron
- pair
- movable
- solenoid
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Abstract
The invention provides an electromagnetic contractor. By employing the electromagnetic contractor, the assembling man-hours are reduced, and the assembling time is reduced. The electromagnetic contractor comprises fixed contacts (15), a movable contact (24) and an electromagnet (17). The fixed contact (15) is installed on a live circuit and is provided with a pair of electric conduction portions (15a) which keep a specified distance and are arranged at an interval; the movable contact (24) is supported by movable supporting parts (21, 22), and moves along the direction which is orthogonal to the extension direction of the pair of electric conduction portions, and is provided with movable contactors (25) which are contacted with or separated from fixed contactors (15b) arranged on the pair of the electric conduction portions; and the electromagnet is provided with a pair of fixed iron cores (17a, 17b) and a movable iron core (17i) which can be adhered to the fixed iron cores, and the movable iron core is arranged in a manner of being opposite to the fixed iron cores, and the movable supporting parts (21, 22) are connected with the movable iron core. The fixed iron core (17a) in the fixed iron cores (17a, 17b) is only wound with a switching-on electromagnetic coil (17d), and the fixed iron core (17b) in the fixed iron cores (17a, 17b) is only wound with a maintaining electromagnetic coil (17e).
Description
Technical field
The present invention relates to the electromagnetic contactor that electric current that the electrical load equipment of subtend motor etc. supplies with carries out switch.
Background technology
Electromagnetic contactor is the device possessing with lower component: fixed contact, and it is arranged on power-on circuit, has the pair of conductive portion that keeps the configuration of predetermined distance compartment of terrain; Moving contact, it is supported by movable support portion, moves up in the orthogonal side of direction of extending with pair of conductive portion, and is arranged on the fixed contact contact in pair of conductive portion or separates; And electromagnet, it has the movable core of fixed iron core and configuration relative to this fixed iron core, and wherein, the above-mentioned movable core of movable support portion and above-mentioned electromagnet links (for example, patent documentation 1).
In the electromagnet of the device of this patent documentation 1, pair of right and left fixed iron core respectively package have solenoid, when to magnetic excitation coil, when movable core attracted to fixed iron core, moving contact and fixed contact electrical connection.
At this, known have a kind of electromagnet, and it possesses following two kinds of solenoids: make movable core be adsorbed in the connection solenoid of pair of right and left fixed iron core; With keep movable core to be adsorbed in the maintenance solenoid (for example, patent documentation 2) of the state of pair of right and left fixed iron core.
Fig. 4 represents the electromagnet 4 of patent documentation 2, is wound with respectively and connects solenoid 6a, 6b on the bobbin 5 of pair of right and left fixed iron core 3a, 3b, is wound with and keeps solenoid 7a, 7b in the periphery of above-mentioned connection solenoid 6a, 6b.This electromagnet 4 as shown in Figure 5, connect solenoid 6a, the 6b connection that is one another in series, keep solenoid 7a, the 7b connection that is one another in series, connecting solenoid 6a, 6b and maintenance solenoid 7a, 7b is connected in series, and the diverter switch 8 of normally-closed contact (b contact) is connected in parallel with keeping solenoid 7a, 7b.In addition, docking energising magnetic coil 6a, 6b excitation, movable core 2 is adsorbed to after a pair of fixed iron core 3a, 3b, in order to keep the adsorbed state of movable core 2, makes to keep solenoid 7a, 7b to become excited state by diverter switch 8 being made as to off-state.
In this structure, because keep the internal resistance of solenoid 7a, 7b larger than the internal resistance of connecting solenoid 6a, 6b, so can reduce the thermal loss etc. of solenoid.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2000-331585 communique
Patent documentation 2: TOHKEMY 2000-82374 communique
Summary of the invention
The technical problem that invention will solve
But, electromagnet 4 shown in Fig. 4 is by being wound on after the bobbin 5 of a pair of fixed iron core 3a, 3b connecting solenoid 6a, 6b, reel maintenance solenoid 7a, 7b and assemble in its periphery, therefore, need to utilize insulating paper etc. connecting solenoid 6a and keep between solenoid 7a (connect solenoid 6b with maintenance solenoid 7b between) insulate, so likely cause assembling number increase in man-hour.
In addition, keep solenoid 7a, 7b linear diameter compared with connection solenoid 6a, 6b thin, therefore, when when keeping solenoid 7a, 7b to be wound on the periphery of connecting solenoid 6a, 6b, easily break.For this reason, must be modestly by keeping solenoid 7a, 7b to be wound on the periphery of connecting solenoid 6a, 6b, to do not break, so the assembling of electromagnetic contactor is needed to a lot of time.
The present invention is in view of above-mentioned existing technical problem proposition, and its object is, the electromagnetic contactor that can reduce assembling number in man-hour and shorten built-up time is provided.
For the technological means of technical solution problem
In order to solve above-mentioned problem, the electromagnetic contactor of an embodiment of the present invention possesses: fixed contact, be arranged on power-on circuit, and there is the pair of conductive portion that keeps predetermined distance ground arranged spaced; Moving contact, by movable support, portion supports, and moves up in the orthogonal side of direction of extending with pair of conductive portion, has and is arranged on the fixed contact contact in pair of conductive portion or the movable contact separating; And electromagnet, thering is fixed iron core and the movable core that can be adsorbed in this fixed iron core and configuration relative to this iron core, the above-mentioned movable core of movable support portion and above-mentioned electromagnet links, and this electromagnetic contactor is characterised in that:
Possess a pair of fixed iron core relative with above-mentioned movable core, on a fixed iron core in above-mentioned a pair of fixed iron core, only reel and connect solenoid, on another fixed iron core in above-mentioned a pair of fixed iron core, only reel and keep solenoid.
According to the electromagnetic contactor of this execution mode, compare with the existing apparatus of the two kinds of solenoids of reeling on a fixed iron core (connect solenoid and keep solenoid), do not need connecting solenoid and keeping insulating between solenoid with insulating paper etc.Also needn't break and the coil of reeling modestly in order not occur.
The electromagnetic contactor of one execution mode is characterised in that: possess diverter switch, it carries out the switching of following two actions: to above-mentioned connection magnetic excitation coil, make above-mentioned movable core be adsorbed in an above-mentioned fixed iron core; With to above-mentioned connection solenoid and above-mentioned maintenance solenoid excitation, make the absorption of above-mentioned movable core be held in above-mentioned a pair of fixed iron core.
According to the electromagnetic contactor of this execution mode, by the switching action of diverter switch, can carry out reliably following two actions: the logical magnetic excitation coil of docking, make to produce electromagnetic force at a fixed iron core, make movable core be adsorbed in the action of a fixed iron core; With docking energising magnetic coil and maintenance solenoid excitation, make to produce electromagnetic force at a pair of fixed iron core, utilize a pair of fixed iron core to keep the action of the adsorbed state of movable core.
The effect of invention
According to electromagnetic contactor of the present invention, compare with the existing apparatus of the two kinds of solenoids of reeling at a fixed iron core (connect solenoid and keep solenoid), do not need connecting solenoid and keeping between solenoid insulating with insulating paper etc., also needn't break and the coil of reeling modestly in order not occur, just can make electromagnet, therefore, can reduce assembling number in man-hour and shorten built-up time.
Brief description of the drawings
Fig. 1 is the longitudinal section that represents the electromagnetic contactor of off state of the present invention.
Fig. 2 is the figure that represents the electrical connection of the solenoid of the electromagnet that forms electromagnetic contactor of the present invention.
Fig. 3 is the longitudinal section that represents the electromagnetic contactor of "on" position of the present invention.
Fig. 4 is the longitudinal section that represents the electromagnet of existing electromagnetic contactor.
Fig. 5 is the figure that represents the electrical connection of the solenoid of the electromagnet that forms existing electromagnetic contactor.
The explanation of Reference numeral
10 ... electromagnetic contactor, 11 ... lower house, 12 ... upper shell, 13 ... extinguishing arc cover, 15 ... fixed contact, 15a ... conductive part, 15b ... fixed contact, 16 ... terminal board, 17 ... electromagnet, 17a, 17b ... fixed iron core, 17c ... bobbin, 17d ... connect solenoid, 17e ... keep solenoid, 17f ... yoke, 17g, 17h ... magnetic pole plate, 17i ... movable core, 20 ... contact portion, 21 ... contact support, 22 ... linking part, 23 ... movable frame, 24 ... moving contact, 25 ... movable contact, 26 ... contact spring, 27 ... back-moving spring.
Embodiment
Describe in detail and be used for implementing mode of the present invention (hereinafter referred to as execution mode) with reference to the accompanying drawings.In following execution mode, although inscape, kind, combination, shape, relative configuration etc. have been done to various restrictions,, these only exemplify, and the present invention is not limited thereto.
Fig. 1 is the sectional view that represents the electromagnetic contactor 10 of embodiments of the present invention.
The body housing of the electromagnetic contactor 10 of present embodiment comprises: the lower house 11 being made up of insulating material; Be arranged on the upper shell being formed by insulating material 12 on lower house 11 tops; With the extinguishing arc cover 13 being formed by insulating material of installing in the mode of upper opening that covers upper shell 12.
Fixed contact 15 and terminal board 16 are fixed on the upper wall of lower house 11.
Fixed contact 15 and terminal board 16 (are for example arranged on mains side and load-side in couples, left side is mains side, right side is load-side), be provided with fixed contact 15b on the top of the conductive part 15a of the fixed contact 15 on top, the terminal board 16 of bottom is drawn out to the outside of lower house 11.
And by upper shell 12 being arranged on to the top of lower house 11, fixed contact 15 is accommodated in the inner space of upper shell 12.
In addition, contact mechanism 20 is accommodated in the inner space of upper space and the upper shell 12 of lower house 11.
Herein, in the electromagnet 17 of present embodiment, the solenoid 17d that is wound on the periphery of a fixed iron core 17a among a pair of fixed iron core 17a, 17b is made as that to connect solenoid (following, be called " connecting solenoid 17d "), the solenoid 17e that is wound on the periphery of another fixed iron core 17b is made as and keeps solenoid (following, to be called " keeping solenoid 17e ").
Then, as shown in Figure 2, connect solenoid 17d and be connected in series with keeping solenoid 17e, and the diverter switch 18 of normally-closed contact (b contact) is connected in parallel with keeping solenoid 17e.This diverter switch 18 is not recorded in Fig. 1, and it is configured in electromagnet 17 lower house 11 around.
Then, in the electromagnetic contactor 10 of the off state of Fig. 1, by the connection solenoid 17d excitation to electromagnet 17, make to produce electromagnetic force at a fixed iron core 17a, movable core 17i overcomes the elastic force of back-moving spring 27, is adsorbed to fixed iron core 17a, and movable frame 23 moves downwards.Thus, as shown in Figure 3, movable contact 24 moves downwards, and movable contact 25 is connected with fixed contact 15b, becomes the electromagnetic contactor 10 of on-state.
Then, switch the diverter switch 18 of the electromagnetic contactor 10 of on-state, become off-state, docking energising magnetic coil 17d and maintenance solenoid 17e both sides excitation.Thus, produce electromagnetic force fixed iron core 17a, 17b both sides, movable core 17i is adsorbed and remains on fixed iron core 17a, 17b, keeps the contact condition of movable contact 25 and fixed contact 15b.
Movable support of the present invention portion is corresponding with contact support 21 and the connecting portion 22 of movable frame 23.
The action effect of present embodiment is described below:
In the electromagnetic contactor 10 of present embodiment, on a fixed iron core 17a among a pair of fixed iron core 17a, the 17b that form electromagnet 17, only reel and connect solenoid 17d, on another fixed iron core 17b, only reel and keep solenoid 17e, therefore, compare with the existing apparatus of the two kinds of solenoids of reeling at a fixed iron core (connect solenoid and keep solenoid), do not need connecting solenoid and keeping insulating between solenoid with insulating paper etc.In addition, at a fixed iron core a kind of solenoid of only reeling, therefore, needn't be in order not there is not broken string the coil of reeling modestly.Therefore, the electromagnetic contactor of present embodiment can reduce assembling number in man-hour and shorten built-up time.
In addition, in the present embodiment, by diverter switch 18 is made as to on-state, docking energising magnetic coil 17d excitation, make to produce electromagnetic force at a fixed iron core 17a, make movable core 17i be adsorbed to fixed iron core 17a, by diverter switch 18 is made as to off-state, docking energising magnetic coil 17d and maintenance solenoid 17e both sides excitation, make at a pair of fixed iron core 17a, 17b produces electromagnetic force, utilize a pair of fixed iron core 17a, 17b keeps the adsorbed state of movable core 17i, therefore, can make the on-state of electromagnetic contactor 10, hold mode operates reliably.
Above with reference to brief description of the drawings embodiments of the invention, but the present invention is not limited in above-described embodiment.In the technology of the present invention thought range, can do various changes, they all belong to protection scope of the present invention.
Claims (2)
1. an electromagnetic contactor, it possesses: fixed contact, be arranged on power-on circuit, there is the pair of conductive portion that keeps predetermined distance ground arranged spaced; Moving contact, by movable support, portion supports, and moves up in the orthogonal side of direction of extending with pair of conductive portion, have can be arranged on the fixed contact contact in pair of conductive portion or the movable contact separating; And electromagnet, thering is fixed iron core and the movable core that can be adsorbed in this fixed iron core and configuration relative to this iron core, the described movable core of movable support portion and described electromagnet links, and this electromagnetic contactor is characterised in that:
Possess a pair of fixed iron core relative with described movable core, on a fixed iron core in described a pair of fixed iron core, only reel and connect solenoid, on another fixed iron core in described a pair of fixed iron core, only reel and keep solenoid.
2. electromagnetic contactor according to claim 1, is characterized in that:
Possess diverter switch, it carries out the switching of following two actions: to described connection magnetic excitation coil, make described movable core be adsorbed in a described fixed iron core; With to described connection solenoid and described maintenance solenoid excitation, make the absorption of described movable core be held in described a pair of fixed iron core.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012266237A JP2014112482A (en) | 2012-12-05 | 2012-12-05 | Electromagnetic contactor |
| JP2012-266237 | 2012-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103854926A true CN103854926A (en) | 2014-06-11 |
Family
ID=50862450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310552808.6A Pending CN103854926A (en) | 2012-12-05 | 2013-11-08 | Electromagnetic contractor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014112482A (en) |
| CN (1) | CN103854926A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962687A (en) * | 2018-09-17 | 2018-12-07 | 浙江天正电气股份有限公司 | A kind of A.C. contactor |
| CN115360061A (en) * | 2022-09-26 | 2022-11-18 | 北京天创凯睿科技有限公司 | Self-holding electromagnetic contactor and electric control system of fighter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551893A (en) * | 2016-01-29 | 2016-05-04 | 浙江奥凯电气有限公司 | Electromagnetic mechanism of direct current contactor |
| CN113990709B (en) * | 2021-10-18 | 2023-12-15 | 湖南鼎力电气系统有限公司 | New energy high-voltage direct-current relay based on three-section separation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129346A (en) * | 1994-10-25 | 1996-08-21 | 富士电机株式会社 | Electro-magnet of electromagnetic contactor |
| JP2000082374A (en) * | 1998-09-08 | 2000-03-21 | Yaskawa Electric Corp | Electromagnet device for electromagnetic contactor |
| CN101447272A (en) * | 2007-04-09 | 2009-06-03 | 伊顿公司 | Electromagnetic coil apparatus employing a magnetic flux enhancer, and accessory and electrical switching apparatus |
| CN101872696A (en) * | 2009-03-30 | 2010-10-27 | 富士电机机器制御株式会社 | Electromagnetic contactor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227231A (en) * | 1978-09-05 | 1980-10-07 | Eaton Corporation | Integral relay low voltage retentive means |
| JP2000331585A (en) * | 1999-05-24 | 2000-11-30 | Fuji Electric Co Ltd | Electromagnetic contactor |
| JP2001126570A (en) * | 1999-10-25 | 2001-05-11 | San'eisha Mfg Co Ltd | Coil change switch for the input magnet in magnetic switch |
-
2012
- 2012-12-05 JP JP2012266237A patent/JP2014112482A/en active Pending
-
2013
- 2013-11-08 CN CN201310552808.6A patent/CN103854926A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129346A (en) * | 1994-10-25 | 1996-08-21 | 富士电机株式会社 | Electro-magnet of electromagnetic contactor |
| JP2000082374A (en) * | 1998-09-08 | 2000-03-21 | Yaskawa Electric Corp | Electromagnet device for electromagnetic contactor |
| CN101447272A (en) * | 2007-04-09 | 2009-06-03 | 伊顿公司 | Electromagnetic coil apparatus employing a magnetic flux enhancer, and accessory and electrical switching apparatus |
| CN101872696A (en) * | 2009-03-30 | 2010-10-27 | 富士电机机器制御株式会社 | Electromagnetic contactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962687A (en) * | 2018-09-17 | 2018-12-07 | 浙江天正电气股份有限公司 | A kind of A.C. contactor |
| CN108962687B (en) * | 2018-09-17 | 2024-05-07 | 浙江天正电气股份有限公司 | AC contactor |
| CN115360061A (en) * | 2022-09-26 | 2022-11-18 | 北京天创凯睿科技有限公司 | Self-holding electromagnetic contactor and electric control system of fighter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014112482A (en) | 2014-06-19 |
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| PB01 | Publication | ||
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Application publication date: 20140611 |